Hi Minipow01, It's good to hear from you. Thank you for taking the time to post. So the good news is that when I run your save file, the air units are working fine for me. The bad news is that both McMonkey and Techumseh have been testing/playing the game on their end, but it works for the first but not the second, and based on their individual set ups I can't easily detect why: Techumseh installation is: ToTPP v0.13 The scenario’s address: C:\Games\Microprose\Test of Time\Scenarios\Vietnam 1965 - 1975 My ToTPP directory address: C:\Games\Microprose\Test of Time\ToTPP v. 1.3 Windows XP McMonkey installation is: ToTPP v0.13 Its run from an external hard drive: K:\GAMES\+PRIMARY SCENARIOS\Vietnam 1965 - 1975 Vista 32bit. My installation is: ToTPP v 0.131 C:\Sid Meier's Civilization Chronicles - TOTPP\Civilization II Test of Time\Vietnam 1965 - 1975 C:\Sid Meier's Civilization Chronicles - TOTPP\Civilization II Test of Time\totlauncher.exe Windows 7 64bit I strongly suspect the problem has to be related to where the scenario folder and ToTPP executable are installed, otherwise how else can we explain it works for some but not for others. I've attached a save file of my own, whose air units also work for me. Perhaps you can try it on your end to confirm if the air units are working. If not, which I suspect will be the case, I believe it will help us narrow the problem. With regards the air map, you are using it exactly as I intended it to be. As I indicated in post #84 above: "With regards the movement of air units I didn't necessarily want to add another house rule because I thought it might become self evident to players once they got use to the game, but once your air units exit the first tile of either their city or CVN battle groups base they should immediately move up to the air map (using the 'N' hotkey), then travel to their target tile and only then drop back down (again using the hotkey) to the South East Asia map to attack the selected ground target. This actually makes the game flow much faster and easier and is in reality much more realistic. The US and South Vietnamese air forces flew hundreds of thousands of air missions over the dense jungle terrain of the country during the war without 'accidently' bumping into enemy ground units."